Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
Just installed new lift pump on my 08 kw with a px8 paccar
Second opinion] just installed new lift pump on my 08 kw with a px8 paccar and still not getting fuel to the pump why?… read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
I have a 2005 ram with the 5.9 and it is hard starting and i
i have a 2005 ram with the 5.9 and it is hard starting and i was wondering if the injectors were fired by oil pressure … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
2oo3 5.9 cummins hard to start when cold. Dodge 2003 2500
yes ,new intake heater ,new batteries,a shop changed one of the sensors … read more
Wayne
Wayne
Journeyman
11,567 satisfied customers
I have to shoot a small amount of either in air intake to
I have to shoot a small amount of either in air intake to start truck it's an 03 .it will run all day after start up if kill it you have to do it again . already replaced fuel pump in tank . … read more
Wayne
Wayne
Journeyman
11,567 satisfied customers
2007 kenworth with Cummins isc engine. Hard start when cold.
2007 kenworth with Cummins isc engine. Hard start when cold. If u leave the block heater plugged in it will start normal. Will sometimes smoke blue and sometimes black and sometimes not at all. Has oi… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
2001 3500 5.9 idles but wont run up rpms. just put new lift
2001 3500 5.9 idles but wont run up rpms. just put new lift pump on. … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Need Cummins Expert, I have a 2008 M2 106 Freightliner Dump
Hello My name is John, Need Cummins Expert, I have a 2008 M2 106 Freightliner Dump Truck with a Fuel Issue. The Problem is the high Pressure Fuel Injection Pump wont pump fuel From The high side of th… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,014 satisfied customers
Working on isc got engine light on I can only go 35 MPH got
Working on isc got amber engine light on I can only go 35 MPH got code 128 157 1 pid rail pressure problem were to start lift pump or high pressure pump already swap the fuel filters… read more
Jackie Dempsey
Jackie Dempsey
Heavy Line Technician
Automotive and Diesel Engines
104 satisfied customers
I have this cummins isx ESN 79125882 Giving problem when
Hello I have this cummins isx ESN 79125882 Giving problem when starting very hard to start Even after 1 hr of standstill the fuel returns All fuel lines are ok What could cause it internally Plz help… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a 1993 school bus with a cummins 8.3 6CTA it starts
I have a 1993 thomas school bus with a cummins 8.3 6CTA it starts and runs fine until warmed up and under power acts like it just shuts off and then comes back we have changed fuel filters does this s… read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
I have a 1992 cummins 5.9 liter inline 6 in a trolley. We had
I have a 1992 cummins 5.9 liter inline 6 in a trolley. We had a problem with oil pouring out of the overflow tube. We replaced two pistons and rings. We replaced the turbo. Finally we had the injectio… read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
have a 02 Sterling acterra 7500 Cummins allison with a Terex
have a 02 Sterling acterra 7500 Cummins allison with a Terex L4040 boom on it. Engine light goes on and truck goes in safe mode. This happens for a few minutes then back to normal then randomly back t… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have an 98 freightliner step van. It ran fine all day. Parked
I have an 98 freightliner step van. It ran fine all day. Parked it and then started it up. It started fine,then it acted like it ran out of fuel. The fuel gauge showed 1/2 take but I added 5 gallons t… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
Have a Cat 3126/C7 in a 2004 Ford f650 super duty flatbed tow
Have a Cat 3126/C7 in a 2004 Ford f650 super duty flatbed tow truck. Engine serial no. is HEP33849. Truck has 176,000 miles. Engine ran and started great until I did routine maintenance. Changed oil a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
1999 Bluebird bus with a 5 9 Cummins quit then just run fine
1999 Bluebird bus with a 5 9 Cummins. It quit on me, then it started back up after cranks, then while driving, it would kill and then it started going again. It did it a couple of times, so I replaced… read more
Expert
Expert
i have a 2004 freightliner mt45 step van with a 5.9 l cummins
i have a 2004 freightliner mt45 step van with a 5.9 l cummins eng. it starts running very sluggish at idle in drive more so than not. I just replaced the lift pump and the #6 injector, and it has a ne… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
GMC 6500 top kick: hi i own a 2005 gmc 6500 flat bed wrecker
hi i own a 2005 gmc 6500 flat bed wrecker with a 7.8 duramax with an allison 2500 transmission .the truck started to have some fuel issuses after getting untreated diesel due to cold wheather,we added… read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,615 satisfied customers
I have a 1998 Terex T340 Truck Crane with a Cummins ISC 8.3
I have a 1998 Terex T340 Truck Crane with a Cummins ISC 8.3 electronic engine. Problem: When cold starts and runs fine. After running for a few hours engine sputters when trying to accelerate. It will… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

3,014 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

11,567 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x